It was a moment almost as shocking/hilarious as the very first episode's survivor-gets-sucked-into-jet-engine....
It was like a scene from Final Destination, one minute they were in conversation, the next Juliet's ex-husband was dead-in-the-road.
And given that we are clearly meant to distrust Juliet, why did Jack let her have 3 minutes alone with Henry/Ben? And what did they talk about? And with Ethan turning up in Juliet's pre-Island life, are we about to see the long, slow denouement/exposition of the relationship between the island and the real outside world?
And who are Alex's parents? Is she the lost child of Rousseau?
Thank God that that mid-season, Christmas break is over and my Sunday nights can return to the nightmares on the island(s)...